Old Fossils, New Exhibition

By

Julia M. Klein

Updated Jan. 15, 2008 12:01 a.m. ET

Pittsburgh

In 1898, a newspaper headline trumpeting the discovery in Wyoming of the "most colossal animal ever on Earth" stoked the competitive fires of Pittsburgh steel magnate Andrew Carnegie. After initially failing in his attempt to buy the fossil, a sauropod thigh bone, he hired a leading paleontologist from the American Museum of Natural History in New York to head an expedition to Wyoming. The results were impressive:...